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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Templated Synthesis of Carbon Materials from Zeolites (Y,Beta,and ZSM-5) and a Montmorillonite Clay (K10):Physical and Electrochemical Characterization
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Templated Synthesis of Carbon Materials from Zeolites (Y,Beta,and ZSM-5) and a Montmorillonite Clay (K10):Physical and Electrochemical Characterization

机译：由沸石（Y，Beta和ZSM-5）和蒙脱土（K10）进行碳材料的模板化合成：物理和电化学表征

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摘要

New high surface area carbon materials were prepared at low temperature (600 0C) using zeolite (Y, Beta, and ZSM-5) and rnontmorillonite clay (KIO) templates. Acrylonitrile, furfuryl alcohol, pyrene, and vinyl acetate precursors were polymerized and carbonized in each of the inorganic matrixes without the addition of a polymerizing agent. The templates were removed by acid demineralizatiori and the resulting carbon materials were physically characterized by infrared spectroscopy~ BET (N2) surface area analysis, energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM), and elemental analyses. Electrochemical characterizations were also conducted. Cyclic voltammetry was employed to examine the synthesized carbons in the oxidation of catechol to hydroquinone and quinone, a model reaction that is known to be surface dependent. The identities of both the template and the substrate affected the electrochemical response. Additionally, the ability of the new carbons to intercalate and deintercalate lithium was investigated. While all of the synthesized carbons displayed high irreversible capacities consistent with other low-temperature carbons, the carbons prepared from zeolite Y displayed unique voltage curves, suggesting template effects on the carbon. In addition, all of the carbons prepared for this study displayed significant voltage hysteresis on charge/discharge.
机译：使用沸石（Y，Beta和ZSM-5）和钙锰矿粘土（KIO）模板在低温（600 0C）下制备了新的高表面积碳材料。丙烯腈，糠醇，pyr和乙酸乙烯酯前体在每种无机基质中聚合和碳化，而无需添加聚合剂。通过酸脱矿质去除模板，并通过红外光谱法〜BET（N2）表面积分析，能量色散光谱法（EDS），扫描电子显微镜（SEM）和元素分析对所得碳材料进行物理表征。还进行了电化学表征。循环伏安法用于检查邻苯二酚氧化为氢醌和醌的过程中合成的碳，这是一种已知的表面反应模型反应。模板和基材的身份都会影响电化学响应。另外，还研究了新碳嵌入和脱嵌锂的能力。虽然所有合成碳均显示出与其他低温碳一致的高不可逆容量，但由沸石Y制备的碳显示出独特的电压曲线，表明模板对碳具有影响。此外，为该研究准备的所有碳在充电/放电时均表现出明显的电压滞后。

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